MathSciDoc: An Archive for Mathematician ∫

@inproceedings{ta1933die,
  title={Die Ordnungszahlen Linearer Differenzen-Gleichungssysteme},
  author={Ta Li},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203102795825514},
  booktitle={Acta Mathematica},
  volume={61},
  number={1},
  pages={81-104},
  year={1933},
}